How far is Onalaska, WI from City of Janesville, WI?
The driving distance from Onalaska, WI to City of Janesville, WI is about 171.9 miles (276.7 km), with a travel time of about 02h 42m by car.
- The straight-line flight distance is about 139.1 miles (223.8 km).
- For a round trip, plan for roughly 05h 25m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 02h 42m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Village in Sauk County, Wisconsin, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Chance Showers And Thunderstorms
Sunny then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Onalaska and City of Janesville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Onalaska and City of Janesville.
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1
Start on 2nd Avenue North
1.6 mi · 4 min · 2nd Avenue North
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2
Turn left
134.2 mi · 2 hr 24 min
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3
Keep slight right to continue on I 39, I 90: Chicago
33.1 mi · 35 min
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4
Take the exit slight right
1240 ft · 30 sec
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5
Keep slight right to continue on WI 26: State Highway 26
1117 ft · 32 sec
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6
Keep slight right to continue on WI 26 South: Janesville
126 m · 10 sec
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7
Turn slight right onto Milton Avenue
2.3 mi · 5 min · Milton Avenue
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8
Turn left onto East Memorial Drive
80 m · 12 sec · East Memorial Drive
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9
Continue on North Garfield Avenue
2552 ft · 2 min · North Garfield Avenue
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10
Turn right onto East Court Street
142 m · 16 sec · East Court Street
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11
Arrive at your destination
0 m · 1 sec · East Court Street
Car Route Details
A richer read on the saved driving route between Onalaska and City of Janesville.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Longest stretch
Turn left
134 mi · 02h 24m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Mostly Sunny then Chance Showers And Thunderstorms leaving Onalaska and Sunny then Chance Showers And Thunderstorms near City of Janesville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Onalaska to City of Janesville?
The road trip is about 171.9 miles (276.7 km) and usually takes 02h 42m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Lake Delton is a useful midpoint, sitting about 86.1 miles from Onalaska and 85.8 miles from City of Janesville.
How much longer is the road route than the straight-line distance?
The direct path is about 139.1 miles (223.8 km), while the road route adds roughly 32.8 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 1:04 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.89 one way or $45.78 round trip. Estimated CO2 is about 53.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Chance Showers And Thunderstorms around Onalaska and Sunny then Chance Showers And Thunderstorms near City of Janesville.
Stop Ideas Near Lake Delton
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Lake Delton.
Wisconsin Dells
Portage
Westfield, WI
Madison, Wisconsin
Flight Path Map
This map shows the direct air route between Onalaska and City of Janesville. Straight-line distance: 139.06 mi (223.8 km).
#1 Onalaska
Fourth-class city in La Crosse County, Wisconsin
| Population | 5,766 |
| Coordinates | 43.8844100, -91.2351400 |
| Altitude | 216 |
| Country | United States |
#2 City of Janesville
The most populous city in Rock County, Wisconsin.
| Population | 64,128 |
| Coordinates | 42.6857000, -89.0138500 |
| Altitude | 261 |
| Country | United States |
End: East Court Street (-89.013903, 42.685777)
Estimated Travel Time
Distance: 277 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 43m |
| 40 mph (64.37 km/h) | 04h 17m |
| 50 mph (80.47 km/h) | 03h 26m |
| 60 mph (96.56 km/h) | 02h 51m |
| 70 mph (112.65 km/h) | 02h 27m |
| 80 mph (129 km/h) | 02h 08m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $22.89 | $45.78 |
| Mid-grade | $4.25 | $25.82 | $51.63 |
| Premium | $4.65 | $28.25 | $56.50 |
| Diesel | $5.30 | $32.20 | $64.39 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Wisconsin · May 05, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.